Writing-machine.



, PAI'BNTED DEC. 31, 1907. E. B. HESS.

I WRITING MACHINE. APPLICATION FILED JAN. 30, 1905. RENEWED 001217, 1907.

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No. 875,430. PATENTED-DEQBL 1907 E0 Bl WRITING MACHINE.

APPLIOATION FILED JAN. 30. 1905. RENEWED OUT. 17, 1907. r

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.zi zv enz r; on 544 444 7 7 messes PATENTED DEC. 31, 1907.

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PATENTED DEC. 31, 1 907".

E. B. HESS.

WRITING MACHINE.

APILIOATI ON FILED JAN. 30. 1905. RENEWED OCT. 17, 1907.

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UNITED STATES PATENT oFFIo EDWARD B. HESS, or NEW YORK, Y., ASSIGNOR TO ROYAL TYPEWRITER COMPANY, OF

HOBOKEN, NEW JERSEY, A CORPORATION OF NEW JERSEY.

WRITING-MACHINE.

To all whom "it may concern: Be it known that I, EDWARD B. HEss, a citizen of the United States of America, residing in the borough of Brooklyn, city and State of New York, have invented certain new and useful Improvements in Writin Machines, of which the following is a speci%- cation.

This invention relates to line-lock devices of the class in which the type-bars are locked or prevented from reaching the printing point. It is shown associated with margin;

stop devices so that when the predetermined end of a line is reached the type-bars are automatically locked; and with tabulatory devices so arranged that when the carriage, in being jumped, is arrested, the type bars are locked to render impossible, at that moment should the operator depress the key, printing ofthe first'characterintended for the new column at the end of the line of the preceding column.

lleretofore various line-lock mechanisms of the character referred to have been proposed.

Applicants organization involves a t e bar intercepting device co-extensive witht e curved assemblage of heads of the type bars of a visible writing machine, and is moved into the paths of the type bars in roximity to, or in other words, opposite tie heads; and a peculiarity of construdtion wherein it difl'ers from other type bar locks is that the segmental or curved intercepter hangs from' pivots located above the assen'iblage of t )e bar heads, is normally held out of their pat is by a'snitable retracting device, such as a s ring applied at any appropriate point in t 1e mechanism, and is swung into the paths of the type bar heads. Preferably the'mtercepter is so swung into the paths of the type bar h ads by the endwise draft of a link extending from one side thereof along the side of the machine beneath the platen to the rear of the machineand there operatively connect-ed with appropriate devices acting to arrest the traverse of the carriage'when the predetermined end of a line has been reached, and also to arrest the carriage when engaged by a tabulator stop.

The detailsof construction of the type bar locking devices and margin stop devices, as well as those of tabulating devices combined in this machine with the locking and margin Specification of Letters Patent.

Application filed January 30. 1905 Serial No. 243.4%. Renewed October 17. 1907.

Patented Dec. 31, 1907.

Serial No. 397.917.

a vertical longitudinal section; Fig. 2 is a similar view, showing additional arts and some of the parts in different posit1ons;' Fig. 3 is a rear view with various parts in section; Fig. 4 a detailpartial plan of the carriage showing one end thereof in rear of the platen; Fig. 5 a detail perspective view of the type bar intercepting device and associated parts by which it is operated; and Fig. 6 a diagrammatic view indicating the relation of the margin stop and tabulator devices.

The platen 1 is appropriately mounted in the carriage end plates 2, shown as connected by front and rear cross bars 3-, 4, the latter of which bears upon a roller 5 mounted in a bracket 5"011 the frame. At the front the carria e runs on balls 6. The type-bars 7 suitablypivoted .in a segment 8 below the platen extend toward the front of the machine, normally resting u on the segmental back stop or rest 9. In t e ke board frame 10, above the ty e-e'nds or head s of the type bars, is pivotaliy hung a type-bar loclnng segment 11, co-extensive with the curved or segmental assemblage of type-bar heads, and

normally swung toward the front of the machine out of their paths of travel of the type bars in their excursions to the printing point on the platen. At one side the lockin segment 11 is connected by a link 12 wit one arm of a bell-crank lever 13 pivoted at the rear of the machine, and having its other arm connected by link 14 with the movable mem: ber 15 of the two-part frame-stop of the margin and tabulator stop devices. This stop) is located in rear ofthe platen and prefera ly in, or about in, the center of the machine. The part 15 is disposedvert-ically and ivoted, on an axis at right angles to the p aten,

upon the similarly disposed member 16 pivedon an axis parallel with the platen, in a piece or bracket. 17 secured to the rear plate 18 of the frame. The n per end of member 16, as shown is re'ctan ar in plan, while 15 is thin or flat and hasa limited movement to and from the side of part 16. A coiled spring 19 having one end connected to the frame and the other to bellcrank 13 normally holds the art 15 away from 16 and by the thrust upon ink 12 holds the locking segment 11 out of the paths of the type-bars.

The lower end 16 of the upright member or lever 16 extends, as at 16, toward the right hand side of the machine and has connected to its forwardly bent "end the rear end of alink 21) the front end of which is connected to the vertically movable stem 21 of a fingerpiece 22, to whicl is also connected the rear end of a link .23 w 1088 front end is hinged to a fixed piece 24 on the stem guide-plate 25. A coiled spring 26 surrounding the link 20 has its front end attached to the link and its rear end to the back-plate of the frame and, acts to hold the finger piece, and tabulator and margin frame-stop 15, 16, in normal, -i. 6. forward, osition shown in dotted lines in Fig. 1 and in ull lines in Fig. 2.

Extending between the plates 2 of the carriage is a margin stop-bar 27 having teeth on its upper surface and on which are mounted the adjustable carriage marginstops or blocks 28, 28, each of which has side plates that straddle the bar and are connected below it by a pin 29; and pivotedin the top a spring latch 30 that engages the teeth on the barn These blocks have reversely beveled rearwardly extendin projections 31., and the one 28, to the left, y abutting against the member 16 of the frame-stop determines the left hand margin on the printed sheet, while the block 28 to th right, by abutment against the movable member 15 of the framestop, arrests the carriage when the predetermined length, of line has been printed. When this latter action occurs the upper end of the part or 'lever 15 is moved flatwise against the side of part 16, and the bell crank lever 131s rocked to draw link 12 rearwardly and swing the segmental type-bar locking segment or frame into the paths of the type ends of the bars as illustrated by dotted lines in Fig. 2 If now the operator attempts to depress the finger ieces of any of the typebars, the bars will e revented from passing to the rinting point Y the locking segment 11. I however, it be desired to print one or more letters at the end of the line the margin release key or finger piece 22 is depressed and link 20 draws the end 16 of the frame-stop member forward and rocks its upper end 16, together withthe movable frame-stop meniber 15,'rearwardly (Fig. 1) out of the path of the block 28, when, by reaction of spring 19 the type-bar locking segment is swung out of the paths of the type-bars. Now on the do pression of a printing finger-piece, an additional letter is printed and the carriage fed forward.- 'An suitable universal bar and carriage feed evices, may be employed.

Combined with the devices described are tabulating devices arranged and operating as follows. In rear of the margin stop toothed bar 27 and supported by the carriage end-plates l, is a bar 32 having teeth 33 on its front face. Adjustably seated on this bar are removable tabulator stop-plates 34. The above described rearward movement of the frame stop 15, 16, to release the margin stop, is not sufficient to carry it into position to engage a tabulator stop plate, should one be in position.

In rear of the lower end 16 of the part 16 is a cam plate or wiper 35 carried by a rock-shaft 11. having at the side of the machine a radial arm 37 from which a link 38 extends to the stem 39. of a tabulator key-or" finger piece -10. A springjti app'li'il to the rock-shaft holds" the wiper 35 retracted.

Extending down alongside of the lever 16 is the lower end of an angular rack-bar release lever 42 pivoted ateiS in the frame bracket 5 and from thence extending forward. Its front end has a fiat lateral horizontal extension 44 to the upper face of which isattached a piece of leather or other friction producing material 45, above which is a rearwardly extending horizontal plate or flange 46 attached to or forming part of the carriage feedq'ack 47 normally engaging the pinion i8 on the shaft of the escapement wheel 19. Attached to the ends of the rack are rearwardly ere tending arms 50 pivoted at 51 in the sideplates 2 of the carriage and having applied to one (or each of them) a spring 52- that acts to normally hold the rack 1n engagement with the inion. I

en the tabulator key 40 's depressed the Wiper 35 is rocked forward carrying with it the feed rack-bar release lever and the lever 16 and with it the laterally movable lever 15. The extent of movement is sufficient to carry the member 15 into position to engage the tabulator stop-plates, and is permitted by the slot 16 in the forwardly bent end of the part 16 When the printing in one column is finished, the tabulator key isde pressed and the feed-rack being moved out of engagement with its pinion, the carriage moves forward subject to the breaking action of the surface 45 on the under face of the feed rack flange 46, until the part 15 strikes the next tabulator stop-plate 34, when the carriage will be arrested andthe t pe-bar locking segment swung forward to foekthe type-bars, so that if at that moment a printing key-were depressed printing could not occur. On release of the tabulator key the )arts all return to normal position and printing in the next column may be proceeded with.

The stop member 15 is made thin and extends rearwardly beyond the part 16; and the rearward movement of the two is, sufiicient to bring the former, but not the latter,

into engagement with the tabulator stops, which are also quite tlun, and the construc- -the carriage feed'rack is first thrown out of segmental in form and pivoted in a plane tion is designed to be such as to have as little lost motion as practicable in the passage of the frame sto 15,.16, from normal position to that in which it will engage the tabulator stops. The shift to a new column may be made within two letter spaces, making printing in very narrow columns entirely feasible. The organization or adjustment is such that engagement with its pinion and then a very slight rearward movement of the part 15 brings it into position to engage the tabulator stop next in osition to arrest the carriage and throw tie type bar locking segment across the paths of the type bars. The spring sustained part 15 also acts as a cushion to diminish its shock of inipact against the tabulator stops.

The margin stop devices and such devices in combination with-line lock devices are shown and claimed in my application Ser. No. 243,439, filed January 30, 1905: and the tabular devices and such devices combined with line lock devices and also with the margin stop devices are shown and claimed in my application Ser. No. 244,022, filed Feb. 3,1905.

I claim as my invention:

1. In a writing machine, a platen and type bars pivoted below the platen and normall extending toward thefront of the machine in combinati on with a type-bar locking-frame semblage of type bar heads, normally swung forward into a plane adjacent to and in front of them and adapted to be swung rearwardly over them and into their paths.

3. In a writing machine a platen and typebars pivoted in a segment below the platen and normally lying toward the front of the machine, in combination with a swinging type-bar locking segment curved substantially, to the curve in which the heads of the type-bars lie, pivoted at its ends above the type-bar heads and having its curved face adjacent the type-bar heads, said locking segment'being normally swung forward out EDWARD B. HESS. Witnesses:

E. F. PoR'rER, L. F. BROWNING.

of the paths of and adjacent to the type-bars, and means for swinging it forward to lock the t a to conform, 

